Assig-nor to sullivan



H. B. HALVORSEN. FLUm oPERATED PUMPING SYSTEM.

APPLICATLON FILED MAY 20. 1919.

Patented Aug. 22, 1922 UNITED STATES PATENT OFFICE.

HALRER'J?` B. IIALvoRsEN, or CHICAGO', ILLINOIS, -ASSIGrNoR To, SuLLIvANl MACHINERY COMPANY, AooRroRATIoN or MASSACHUSETTS.

FLUID-OPERATED UMPING p SYSTEM.-

i i l Y lApplication filed May/ 20,

To all whom t may concern: p 'Be it known that I, IIALBnRT B. IIALVOR# SEN, a citizen of the United States,'residing at Chicago, in the county ofCook and State y of Illinois, have vinvented certain new and useful Improvements in luid-Operated PumpingSystems, ofwhi'ch the following is a full, clear, and exact specification.

My invention relates Vto. fluid operated pumping systems, and more-especially to a pump orfo'otepiece for mixing an aerating Huid with a liquid to be pumped.

One object of the present'invention is to provide an improved pump for lan air lift system. Another object of the present invention is to provide an improved means for mixing an aerating fluid with a` liquid tobe pumped. Still another object of the present invention is to yprovide an improved form of foot-piece which is easily and vcheaply made, and which may be easily assembled andattached to the cooperating fluid conductors of ra pumping system. Theseland other 0bjects and advantages of my improvedr construction will, however, hereinafter more fully appear. r l In the accompanying drawings I have shownv for` v,purposes of illustration one embodiment which my invention may assume in practice. t ,Y

In these drawings,- l y Fig. 1,is a longitudinalsectional view of my improved foot-piece, taken on line 1--1 Fg- 2.- u i l i i Fig; 2 is a'transverse sectional view thereof substantially on line 2-2` of Fig. 1. y

Fig. 3 is a detail sectional' view taken on line 3-3 of Fig. 1.

In this illustrative construction I have shown afoot-piece casing 1 having adjacent its upper end a venturi outlet 2 to a riser 3, to which the casing is attached as by a threaded connection therewith. The casing 1 also has a connection with a down pipe v through the bottom thereof, as through a bell-mouth 6 formedon the lower end of a Specicaton of Lettersate'nt. Patented ,Augg 22, 1922 191e.v serial No." 293,466.

theoperation of the pump. Threaded, pref'- erably centrally, into the shell or pipe member 7,- and preferably into a hubr10 formed lcentrally in the foot-piece and attached theretoas Vby hollow webs '1 1, is a central perforated pumpingl member 12, herein shown as conical with the smaller end thereof pointed toward the eduction pipe 3. As the water enters the bell-mouth 6, it is separatedfby a depending point 12', preferably carried by the pump element 12, into a cylindrical column, usually termed alsheet, the water passing upward past the hollow webs v11 into the space between the pump elements 7 and 12. In order. that the webs 11 may impede the flow of the water as littleas possible, lthe upper and lower 'edges thereof are preferably V-shaped, as shown at 11 in Fig. 3. The air which enters the foot-piece from the passageway 5 passes through the hollow web 11'to lthe centralconicalmember 12and is directed from 'the inner bore thereof through a plurality of small passages 13JA which are preferably bell-mouthed at their outer ends, into the water, which it emulsifles, lightens, and lifts ina well 'known'ma'm ner. g Whi-ledifferent means may be used for Idirecting a flowof pressure fluid fromthe passageway 5 to the pump'element 12,I preferably provide aplurality of radial slots 14 which may be aligned with the hollow interiors of the webs 11 to receive a flow of fluid 'therefrom and ydirect -it into the hollow interior of the element 12. Since the slotsla may'not always be aligned with the websv ll I provide between the hub r10, connecting the webs 11, and the perforated pump member 12 carried thereby, an l'annular recess 15 which is always in communication with the slots 14 and the hollow webs 11. -V The eliiciency of a pumping system of this kind depends to a large extentupon the degree yof emulsification-of the waterbyv the air in or just above the pump or foot-piece,

j element7 Lbeingalso :provided with) aplurality. of, injectingjpassages 17,y herein shown asj.

and ."since, especially in the larger fused, `the yinjection of air into a sheet 'of Waterforfother. liquid 1. from: one side thereof` does not thoroughlyremulsify ormimtheair. i

.With the Water, I `.preferably providemeans l for injecting the Water intol=a sheet'onbothf sides of the latter. For this purpose, I have" provded `between .the :pumpl element r7 and` thecasing l, a space ljvhich isalvvaysin communication With th'einletb, the Hpump" similar .te theinjegnngpassages .iai/for difrecti'ngfairfrom around the shell7 into `,thefoutside .ogff the sheet,which lovvs upward be- 1 tvveen `thecentral,member 12and the shellf from thebell-ninuth 6; Since the .innersurace'f'f. 1thefshelll is considerably larger than .theouter surface of ythe conical member 121Ipreferably space theinjecting passages 1 14,7 ur'therfapart in the 'shell 7 andalso preferably.. intersperse somezof the vpassages lf? i111 .the sha1 betweeneoma; Qf the .passages lifin the entre piece ylas@ that thev weer,

j ments" I l "12,1is actedfupon alternatelyon oppositejlsidesby ysuccessive-jets, with-the result, that the airismore thoroughly mixed 'Water' because of thechurning motionlygiven tothe latter. l `'lheshellispref- "ei'ablygmade asa separate; piece and detachraide@ the costfofmanufacwmnd'facilitate the replacement of; broken partsand the in- 40.1 `novelgfand improved means or injecting an j aeratngfiluidinto bothsidesrof a'sheet cf f liquidiioibevelevaed; anale-M haven-pfo- 4 liquidj in such a manner thatthe tv'vo-are` thoroughlymixed and that-no pressure' fluid y .an improved injecting means vfor directmg, ,ai flow lv of gas under pressure `into i a .is` lost rdurin `fthe emulfsifying. of. rtheliquid.

a sdbegnoted .thatI 4have, ,prof lvided1an;improved'l I.fo''it-pieceA Afor` air glift Pumps. `Whclfl .is eeSilyOnStruCtei .easily aS- I sembled, jand which may be-attachedto air liftsystems. now in use without'. any modification Whatever in` these systems.

l f understoodithat thislformisfused for illus-` v rious lother. formsgwithout departing from its q While'l vave in this, application lspecifically .describedf `one embodiment .which my invention. may assume` in practice, it is to be @retire Puree-SGS 0111? and that the invention may bepzmodifie and embodied inva- "spiritv or the scope 'of,.theiap ended claims@` desire tofsedure asfit passes up betvveenrthe l.two pumping eleclu'di-ng the axis ofthenozzle,.the1.points of intersection-lying vin a surface of revolution. Y 2.1In an air lift apparatus,` a nozzle having in a planepassing `throughihe,axisof Vprovision 'fordirecting Jaerating` `fluid finto i. intersecting jets Whose 'axes he 1n planes 1n-1 ."ing'frneansffor discharging apart of `an l* aerating luidina jet, and means Jfor disj `.charginganother parto'lthe aerating1--fluid in an intersectingjet, said jets andthe apexl of-.the'angle'madeby their intersectionl ly- 75 the ..nozzle,fbut. said apex4 spaced` latj a member for discharging a j part of an aeratingfluid-m a jet, `and,a,me1nb `er..for

dischargingU anotherA apart: j of `the' a'erat'ng'l 1113;.Inanl'air,liitapparatu anozzle f 8.0' 1

`flui'd'in an `upwardly `directed intersecting j' jet at a pointlabove said first' named jet.`- f

, 4I YIn an` air` lift pump,.-meanscompri`sing pointed deflectingmeansforfformingafliquid enterino". the` pump into "af sheet, and v `means for discharging a compressed fluid*` intoboth si'desoffsaid sheet..` y y an air liftpump, means comprising pointed `deflecting fmeans. and a lcoaxially disposed casing flor` vforming a liquid'entering 'the'pump into` a sheet, and oppositely Qdisposedfmeanslfor discharging Va vcompressed fluidnte both sides ofsaidjsheet.

l. (ifIn aioot-pieceffor airl lift apparatus," an' air intake-la substantially cylindrical.

member,` "having i provision .fior separating@ i `part ojlfV the yair into; va pluralityy of i jetsf'and a, conical member having! provision `for sepico arating another part-ofthe airinto aplurality` ofljets,r said membersjcooperating to yform the'liquid'tobe aerated intofa sheet and to confine it in sheet "form Vduringaerationby s'aidjetsAlk ,j may 7' In a fooi-piece forfait lift .pparatsif 'an ai?"lliek,Y ya; substantially Cylindrical memberfhavinglprvision"for separating a `part cf the air intoa yplurality of jetsyand 'a conicalmember having provision iorj'jsepar'atmg another-part of the air into a plurality of jets, .said lastnamed jets intersecting said iii-st named jets. .Y

[8L In a` foot-piece 'forair'liit apparatus,

f member. havingv 'provision "lor sep arating a` f ,party-of the air' into a pluralit'yfo'` jets, and l ank air intake, a substantially j' cylindrical aV conical member having provisionfvforseparating another part of `theair into'a plu- .1

rality 'of jets, said conical memberfbeingdisposed Within saidcylindrical lmember and said vlast!named jetsbeingdirected. in theV aposiefdifeain from g-S'aidrffs .named jets. i i l l i an. air intake, a `substantiallyj cylindrical member having provision .for separating `a.

partjnt the air-intoa plurality of jets, and l a :conical memberfhaving provision for separating ano her part ofthe air intol a plurality of jets, said conical member being disposed within said cylindrical member and a part of the jets in said members being in staggered relation.

10. In a foot-piece for air lift apparatus, an air inta-ke, a substantially cylindrical member having provision for separating a part of the air into a plurality of jets, and a detach-able conical member having provision for separating, another part of the air into a plurality of jets.

11. In an air lift pump, a foot piece comprising means for dividing the ascending column of liquid into an unbroken annulus, and means for simultaneously aerating said annulus fromvboth sides thereof.

12. In an air lift apparatus having an eduction pipe, a foot-piece adapted to be attached to the eduction pipe, a liquid inlet carried by said foot-piece, and a plurality or oppositely disposed means between said inlet and the part of the foot-piece attachable to the eduction pipe for mixing an aerating fluid with the liquid to be pumped.

13. In an air lift apparatusv h-aving an eduotion pipe, a foot-piece adapted to be attached to the eduction pipe, a liquid inlet carried by said foot-piece, and a plurality of means between said inlet and the part of the foot-piece attachable to the eduction pipe for mixing an aerating fluid with the liquid to be pumped, one of said means being detachably secured to the foot-piece.

14e. In an air lift apparatus, a pump comprising a casing, through which the liquid to be pumped is adapted to flow, a fluid flow directing means mounted in spaced relation thereto, and jet means opening through the wall of said casing for supplying an aerating fluid to the space between said casing and said fluid directing'means.

15. In an air lift apparatus, a pump comprising a casing through which the liquid to be pumped is adapted to flow, a det-aclableA fluid flow directing means mounted thereon in spaced relation thereto, and jet means opening through the wall of said casing for supplying an aerating fluid to the space between said casing and said fluid directing means. f

16. In an air lift apparatus, a pump comprising a casing, a fluid aerating means mounted in spaced relation thereto, means for supplying an aerating. fluid to the space between said casing and said fluid aerating means, and a second fluid aerating means detachably secured to said casing and communicating with the space between said casing and first named means.

17. In an air lift apparatus, members cooperating to form between them a passage annular in cross section for the flow of a liquid to be aerated, said passage communicating at its top with a riser pipe and progressively increasing' in flow area from a point adjacent its inception to its end adjacent said riser pipe, and means for discharging aerating fluid into a liquid in said passage, said means discharging into said passage through the outer periphery thereof.

18. In an air lift apparatus, members cooperating to form between them a passage annular in cross section for the flow of a liquid to be aerated, said passage communicating at its top with a riser pipe and progressively increasing in flow area from a point adjacent its inception to its end adjacent said riser pipe, and means for discharging aerating fluid into a liquid in said passage, said means discharging into said passage. both through the inner and through the outer peripheries thereof.

19. In an air lift pump, a foot piece comprising an annular chamber having a connection with a source of pumping fluid and having a central longitudinal bore through which the liquid to be pumped may pass and also having orifices inthe inner wall of the chamber discharging into said bore, and

`a centrally disposed, hollow member supported within said bore and cooperating with the inner wall of said chamber to form the liquid vinto an elongated annular sheet, said member also having orifices in its walls and a connection with a pumping fluid supply whereby pumping fluid may be discharged into the inner wall of the annular liquid sheet.

20. In an air lift pump, a foot piece comprising` an annular member and a member centrally disposed therein and supported by at least one arm projecting from said annular member, said annular and central members cooperating to form an elongated generally annular passage for liquid to be pumped and having each within it a pumping fluid supply chamber and having orifices opening through the walls thereof' into said annular passage, and means for supplying pumping fluid to both of said chambers including a passage through said arm.

In testimony whereof I aflix my signature.

HALBnnr le. rninvoasnii. 

